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4 years ago

The volume of water in a transfer pipette is 15.23 ml. A 6.7 mL

Chemistry

2 answers:

Tju [1.3M]4 years ago

4 0

Answer:

8.5

Explanation:

15.23 - 6.7 = 8.53

The correct amount of sig figs would make the answer 8.5

alexira [117]4 years ago

3 0

Answer:

The new volume of water in the pipette is 8.53 mL

Explanation:

The given information are;

The initial volume of water in the transfer pipette = 15.23 mL

The amount of water transferred from the pipette = 6.7 mL

The new volume of water in the transfer pipette is given as follows;

New volume of water in the pipette = Initial volume of water in the pipette - Volume of water transferred out

Therefore, we have;

New volume of water in the pipette = 15.23 mL - 6.7 mL = 8.53 mL

The new volume of water in the pipette = 8.53 mL

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Answer:

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Cho m gam FeO tác dụng hết với dung dịch H2SO4, thu được 200 ml dung dịch FeSO4 1M. Giá trị của m là

BaLLatris [955]

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Explanation:

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Putting values in equation 1, we get:

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$FeO+H_2SO_4\rightarrow FeSO_4+H_2O$

By stoichiometry of the reaction:

If 1 mole of iron (II) sulfate is produced by 1 mole of FeO

So, 0.200 moles of iron (II) sulfate will produce = $\frac{1}{1}\times 0.200=0.200mol$ of FeO

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$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

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3 years ago

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Explanation:

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3 years ago

You have at your disposal 3 1-pound bags of various pure salts that dissolve readily in water. You can add one of the bags to a

Sedaia [141]

Answer:

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Explanation:

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